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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement of Comprehensive Income [Abstract]      
Amortization of net actuarial loss, tax effects $ 192 $ 210 $ (55)
Amortization of prior service cost, tax effects $ 0 $ 0 $ (46)